/*
 * Copyright (c) 2014 tabletoptool.com team.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     rptools.com team - initial implementation
 *     tabletoptool.com team - further development
 */
package com.t3.client.swing;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.text.JTextComponent;

public class NoteFrame extends JFrame {
	private JTextComponent noteArea;
	private JButton clearButton;
	private JButton closeButton;

	public NoteFrame() {
		setPreferredSize(new Dimension(300, 300));
		initUI();
	}

	private void initUI() {
		setLayout(new BorderLayout());
		add(BorderLayout.CENTER, new JScrollPane(getNoteArea()));
		add(BorderLayout.SOUTH, createButtonBar());
	}

	private JTextComponent getNoteArea() {
		if (noteArea == null) {
			noteArea = new JTextArea();
			noteArea.setBorder(BorderFactory.createLineBorder(Color.black));
		}
		return noteArea;
	}

	private JPanel createButtonBar() {
		JPanel panel = new JPanel(new BorderLayout());
		panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));

		panel.add(BorderLayout.WEST, getClearButton());
		panel.add(BorderLayout.EAST, getCloseButton());
		return panel;
	}

	private JButton getClearButton() {
		if (clearButton == null) {
			clearButton = new JButton("Clear");
			clearButton.addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					getNoteArea().setText("");
				}
			});
		}
		return clearButton;
	}

	private JButton getCloseButton() {
		if (closeButton == null) {
			closeButton = new JButton("Close");
			closeButton.addActionListener(new ActionListener() {
				@Override
				public void actionPerformed(ActionEvent e) {
					processWindowEvent(new WindowEvent(NoteFrame.this, WindowEvent.WINDOW_CLOSING));
				}
			});
		}
		return closeButton;
	}

	public synchronized void addText(String text) {
		getNoteArea().setText(getNoteArea().getText() + text + "\n");
		getNoteArea().setCaretPosition(getNoteArea().getText().length());
	}
}